AN ELECTRODE PLATE, A METHOD FOR FORMING THE ELECTRODE PLATE, AND A METHOD FOR FORMING A LITHIUM BATTERY CORE CONTAINING ELECTRODE PLATE

摘要

An electrode plate having a front surface a large proportion of which is coated with a first coating layer and a back surface a large proportion of which is combined with a second coating layer. The first and second coating layers are respectively combined with a solid-state molecular polyelectrolyte coating layer. The electrode plate is used as a positive electrode plate or negative electrode plate, and the positive and negative electrode plates are alternatively stacked. A solid-state molecular polyelectrolyte coating layer is located between the positive and negative electrode plates. A winding core is formed by alternatively stacking and continuously winding the positive and negative electrode plates, and the formed winding core is used to form a Lithium battery core. The formed Lithium battery core can operate normally under high-temperature and low-temperature environments and has stable performance, so as to ensure a safety use.

主权项

1. An electrode plate, having a front surface and a back surface, where a large proportion of the front surface of the electrode plate is combined with a first coating layer, a large proportion of the back surface of the electrode plate is combined with a second coating layer, and the first and the second coating layers are respectively corresponding to the front and the back surfaces of the electrode plate; said electrode plate characterized in that:
the first coating layer and the second coating layer are respectively combined with a solid-state molecular polyelectrolyte coating layer, wherein the solid-state molecular polyelectrolyte coating layer is made by a high-molecular molecular polymer that has a repeating unit E1 represented by following Formula I:  the repeating unit E1 has two side groups L1 and L2 that are bonded with two of the four nitrogen atoms in the repeating unit E1, wherein:
L1 and L2 independently represent a R1—SO3M group, in whichR1 represents a hydrocarbon,M represents a cation selected from the group consisting of Li+, Na+, H+, and K+,R3 represents a H group or a SO3M group, and x represents an integer greater than 10.